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不同移植密度樟子松幼苗生长对比研究

作  者:
杨磊;冯建芳;冯倩倩;周梅;向昌林;任重
单  位:
内蒙古农业大学林学院;内蒙古和盛生态科技研究院有限公司;内蒙古赛罕乌拉森林生态系统国家定位研究站;内蒙古赛罕乌拉国家级自然保护区管理局
关键词:
樟子松;移植密度;移植苗
摘  要:
在赤峰赛罕乌拉综合防护林示范基地,以樟子松幼苗为研究材料,对比50 cm×50 cm和80 cm×80 cm两种移植密度樟子松幼苗的苗高、地径、冠幅(东西);根系长度、直径、数量;生物量等指标。结果表明:80 cm×80 cm密度的幼苗的平均苗高比50 cm×50 cm密度的高14.9%、平均地径高17.5%、平均冠幅(东西)分别高21.4%与13.9%;80 cm×80 cm密度的幼苗的平均根系长度比50 cm×50 cm的高29.0%、平均根系直径高57.5%、平均根系数量高75.0%;80 cm×80 cm密度的幼苗的平均生物量比50 cm×50 cm的高128%。说明80 cm×80 cm密度的幼苗的质量比50 cm×50 cm密度的幼苗质量要好,更适宜当地造林。
译  名:
Growth Comparison of Pinus Sylvestris Seedlings With Different Transplanting Density
作  者:
YANG Lei;FENG Jianfang;FENG Qianqian;ZHOU Mei;XIANG Changlin;REN Zhong;College of forestry, Inner Mongolia Agricultural University;Inner Mongolia Saihanwula Forest Ecosystem National Positioning Research Station;Inner Mongolia Hesheng Ecological Science and Technology Research Institute Co.;Saihanwula National Nature Reserve Administration of Inner Mongolia;
关键词:
pinus sylvestris;;transplanting density;;transplanted seedlings
摘  要:
In Saihanwula integrated shelter forest demonstration base of Chifeng, pinus sylvestrisseedlings with the transplanting density of 50 cm × 50 cm and 80 cm × 80 cm were studied bycomparison in seedling height, diameter and crown breadth(east-west), root length, diameter andquantity, biomass and other indicators. The results showed that the average height of seedlings withthe density of 80 cm × 80 cm was 14.9 % higher than that of those with the density of 50 cm×50 cm,the average diameter 17.5 % higher, the average crown breadth(east-west) respectively 21.4 % and13.9 % higher, the average root length 29 % higher, the average root diameter 57.5 % higher, theaverage root quantity 75 % higher, and the average biomass 128 % higher. The results illustrated thequality of the seedlings with the former density is better than that with the latter one, and the formerdensity is more suitable for the local afforestation.

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